Pump.



E; ISBERG.

PUMP. APPLICATION FILED MAR.7, 1914.

WITNESSES lNvENToR E ra sbe mg BY LWLWM CLIM V. E N R 0 T. T. A

THE MORRIS PETERS 60,. gHofLlfH.. WASHINGDN. D. C.

E. ISBERG.

PUMP.

APPLICATION FILED MAR. 1, 1914.

2 SHEETS-SHEET 2.

1,134,048. Patented Mar. 30, 1915.

WITNESS s lNvENToR 'M ATTORNEY ERIC ISBERG', OF CADILLAC, MICHIGAN, ASSIGNGR 0F CNE-HALF TO SILAS A. WELLMAN,

OF SOUTH BOARDMAN, MICHIGAN.

PUMP.

Specification of Letters Patent. Patented Mar, 30, 1915.

Application filed March '7, 1914. Serial N0. 823,163.

T0 all whom t may concern:

Be it known that I, ERIC IsBERG, a citizen of the United States, residing at Oadil` lac, in the county of Wexford and State of Michigan, have invented new and useful Improvements in Pumps, of which the following is a specification.

My present invention relates to pumps, and its object is to provide a helical pump especially adapted to circulate the water for cooling automobile engines, and in which end-thrusts of rotating parts shall be eliminated, as well as any tendency to drive the lubricating oil out ardly from the bearings; and further, to provide improved adjusting means for the parts of such a pump.

These and any other objects appearing hereinafter are attained by, and my inven` tion finds a preferable embodiment in, the pump hereinafter described and illustrated by the accompanying drawings, in which Figure l is a longitudinal central section of such ump; and Fig. 2 is a transverse section of the same taken in a plane corre sponding to line 2-2 of Fig. 1.

The body portion or frame 1 contains a chamber 2 interiorly circular in cross-section and a'ording a rotary bearing for the peripheries of the pumping disks 3, spaced apart as shown to provide a water passage 22 between them and mounted on their shaft 4 driven as by a pulley 5. Each of these pumping disks has helically-disposed water passages 6 extending therethrough from one side to the other, and being right-handed in one disk and left-handed in the other. Water being drawn in through the inlet 7 passes by the inletls branches 8 into the ends 9 of the chamber 2 (which ends are sufhciently open to admit the water), being pumped by the rotation of the pumping disks through the helical passages, the passage 22 between the disks, and thence eX- pelled through the outlet 10. rlhese pumping disks are preferably conical and oppositely tapering, the walls of the chamber 2 corresponding thereto, so that by relatively rotating the members l1 and 12 of the driving shaft 4, their screw-threaded connection 13 moves the pumping disks toward or away from each other, whereby the disks may be adjusted to tighten or loosen their bearings: when this adjustment is made, the parts are securely held therein by tightening, (as by its nut head 14) the bolt 15 extending through an axial bore 16 in the shaft niember 12 and threaded at 17 in the other shaft member ll, the thread of such bolt bein@ preferably opposite to that of the threaded connection 13 of the shaft members.

Oil holes 18 are shown, screw set collars 19, and screw-threaded packing caps 20 containing suitable packing 21.

it will be seen `that my pump is balanced, there being no end thrust on the shaft in either direction: also, that the lubrieating oil is not driven outwardly from the shafts bearings, for there is, at such bearings, no outward pressure created by the pumping action.

Not confining myself to details of construction shown or described, I claim 1. In a device of the character described, a body having a chamber open at the ends and circular in cross-section, co-axial rotatable pumping disks within the chamber and having a water passage between them and having helically-disposed water passages through them, said helical passages being right-handed in one disk and left-handed in the other, the frame having a water inlet with branches leading to the chambers open ends and a water outlet leading from the passage between the disks, the disks being conical and oppositely tapering and the internal wall of the chamber corresponding thereto, and means for adjusting the pumping disks toward and away from each other.

2. In a device of the character described, a body having a chamber open at the ends and circular in cross-section, pumping disks within the chamber and having a water passage between them and having helicallydisposed water passages through them, said helical passages being right-handed in one disk and left-handed in the other, a driving shaft having two alined portions on which the disks are respectively mounted,

said portions having a screw threaded oon- In testimony whereof I have hereunto set neotion and one portion having a longitudimy hand in presence of two subscribing Wit nal bore with a boit therein threaded into nesses. Y the other portion, and the frame having a ERIC ISBERG.

5 water inlet with branches leading to the wWitnesses:

chambers open ends and a water outlet WILLIAM H. YEARND, leading from the passage between the disks. NAOMI ANDERSON.

Copies of this patent may he obtained for iiv: cents each, by addressingthe Commissioner of lacents,

Y Washington, D. C. 

